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. Author manuscript; available in PMC: 2013 Feb 7.
Published in final edited form as: Occup Environ Med. 2011 Jan 21;68(7):537–541. doi: 10.1136/oem.2010.059469

Table 2.

Spearman correlations between exposure surrogates and post-application urinary levels in the Agricultural Health Study Pesticide Exposure Study (Thomas et al., Personal Communication).

Pesticide Applied KG Active Ingredient Hours Mixed or Applied Acres Treated
2,4-D (N=63 to 68)1 0.05 0.09 −0.09
Chlorpyrifos (N=16) 0.19 −0.28 −0.36
1

Number of individuals with monitoring data varied for the three determinants.